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Old 09-10-2021, 08:41 PM   #1
daveshilling
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Mounting the cheaper truck DBW pedal in a 55-59 cab

I saw mounts for sale online that use the corvette pedal, and I seriously considered buying. Then I saw it was $150. Then I realized the pedal wasnt compatible with my '03 5.3... then I realized the pedal and TAC that came with the truck are MOST likely to work the first time.

So I figured out my own mounting plate.
  • I took some sheet stock that is the same thickness as the dash brace and cut out a flat bracket to fit to the right of the brace.
  • I cut off the lower right corner and recycled that piece as a mounting tab.
  • I used a lower existing hole in the cab, and drilled a hole in my bracket,
  • Bolting that up with 3 washers behind it to take up the space, I was able to then bolt down the upper mounting tab as well, and trace its location onto the bracket. Then welded it up.
  • I left a bunch of space above the pedal in case I wanted to throw another bolt up there, scoot the pedal up and out of sight later, etc. Rather have it then not!
  • I used 1/4" bolts to mount the pedal to the bracket. the heads of these bolts are slim enough to reside in the space behind the bracket without touching the firewall.
  • I trimmed the unnecessary metal from the pedal, and drilled a new lower mounting hole.
  • Mounted up the pedal, and found that there is some flex when pressing very firmly, but when using the pedal like a normal human person it was plenty stiff...a third mounting hole and new hole drilled in the firewall could alleviate this, but I don't care enough to take that step for no real actual benefit.
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Old 09-10-2021, 08:43 PM   #2
daveshilling
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Re: Mounting the cheaper truck DBW pedal in a 55-59 cab

Once installed, the pedal sits pretty much spot on the height of a floor mount booster using a factory pedal. Depending on how firm my brakes end up being, there may be room to adjust both of these closer to the firewall to relax the right leg a bit more.
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Old 09-10-2021, 08:54 PM   #3
mongocanfly
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Re: Mounting the cheaper truck DBW pedal in a 55-59 cab

That's nice..make sure you have clearance for your carpet or floor mat..I didnt on mine and had to redo it
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Old 09-11-2021, 12:30 PM   #4
daveshilling
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Re: Mounting the cheaper truck DBW pedal in a 55-59 cab

For sure. I actually used a trick while installing to do that. Jammed a bolt into the top of the pedal to show its height at WOT, and used that when selecting the pedal position.
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Old 09-11-2021, 12:40 PM   #5
ls1nova71
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Re: Mounting the cheaper truck DBW pedal in a 55-59 cab

Just an FYI,, but most pedals have some extra travel built into them to allow for the carpet and insulation. Jamming it all the way open and modifying it from there may result in the last bit of the pedal not doing anything, so it will feel like you get 100% WOT at around the 75% mark.
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Old 09-13-2021, 12:18 PM   #6
daveshilling
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Re: Mounting the cheaper truck DBW pedal in a 55-59 cab

Quote:
Originally Posted by ls1nova71 View Post
Just an FYI,, but most pedals have some extra travel built into them to allow for the carpet and insulation. Jamming it all the way open and modifying it from there may result in the last bit of the pedal not doing anything, so it will feel like you get 100% WOT at around the 75% mark.
That's fine, I'm pushing 100%, expecting 100%, and getting 100%, so that checks out
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